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Specifications

UST100GLIB
 

  Single Video Ground Loop Filtering Isolator/ Blocker -for DVR
Video signal saturation rejection, backend noise filter for DVR interference immunity, mini cable w/ BNC connectors, < 0.3dB insert loss, > 15dB return loss, over 1500V isolated voltage, build in transcient protection
 
  

UST100GLIH
Single Video Ground Loop Isolator/ Blocker - for DVR
Video signal saturation rejection, backend DVR video ground isolation, mini cable w/ BNC connectors, < 0.1dB insert loss, > 18dB return loss, over 1500V isolated voltage, build in transcient protection		  

UST100GLI
  Single Video Ground Loop Isolator/ Blocker -for Camera
Video signal saturation rejection, frontend camera video ground isolation, mini cable w/ BNC connectors, < 0.1dB insert loss, > 18dB return loss, over 1500V isolated voltage, build in transcient protection		  

UST100GLIH
Single Video Ground Loop Isolator/ Blocker - for DVR
Video signal saturation rejection, backend DVR video ground isolation, mini cable w/ BNC connectors, < 0.1dB insert loss, > 18dB return loss, over 1500V isolated voltage, build in transcient protection		  
Video Ground Loop Description


Solving Ground Loop Problems A ground loop is an electrical problem that happens when an AC current interferes with the ground reference level of the video signal. It occurs on the conductive path formed by the shield of the video cable and the chassis of the video equipment. A loop results from the difference between the voltage potential of the shield at one end of the cable, versus the voltage potential of the shield at the other end. The electrical level of the shield is usually zero volts. When a ground loop is present, this level fluctuates above and below zero volts. The greater the difference, the more severe the distortion or tearing. If the potential is too great it can destroy the equipment. Ground loops are an after-the-fact type of problem in which the end-user blames the installer, the installer blames the manufacturer, and actually nobody is at fault. Neither the manufacturer nor the installer can predict where a loop will occur. Only after the system is installed can it be determined if a problem will exist. Ground loop problems can be corrected. It is important for both the dealer and the end-user to be aware that this problem can occur. A ground loop problem may occur at several points in the system, and each occurrence of the problem must be corrected individually. Loops can occur between a camera and monitor, from a camera to a switch, or one of many other possibilities.

Video Ground Loop Isolator Features

Video Ground Loop Isolator could reduce "Ground Loop Interference" with CCTV signals and can easily install in a new or added to existing systems. It is useful where a video signal is transmitted via cable between points with different ground potentials, differences in ground potentials are typically caused by unbalanced power line loads

Specification

 

  • Insertion Loss: less 0.5dB
  • Frequency Response: 0-3dB range in 20Hz to 12MHz
  • CMRR: 58dB @ 1MHz
  • Differential phase: less than 2 degrees
  • Differential gain: less than 2%
  • S/N ratio: >60dB
  • Ground loop circuit isolation: >90dB and >50Hz
  • DC loop resistance: 18 ohms/100m
  • Isolation Voltage: 600VDC (Min)
  • Input Resistance: 75 ohm
  • Output Resistance: 75 ohm
  • Insulation Resistance: 100M ohm
  • Build in external paasive isolation circuit with isolation transformer,
    DC video input signal saturation rejection, line termination for 'Hum Bar' rejection, common & differential mode noise LPF filter
    perfect to DVR to immunity interference, for extra interference rejection(UST110GLIB)
     
  • BNC male with 150mm coxal cable to screw terminal block (UST110GLI).
    UST111GLI + BNC female with mini 150mm cable (UST111GLI+Cable).
    BNC male with screw terminal (UST111GLI-H)
  • Passive, no power required.
  • Prevents video-signal distortion caused by video ground loops.
  • Eliminates picture tearing, cross talk and rolling.
  • Prevents power cables laid by others interfering with the CCTV system.
  • Built in TVS (Transient Voltage Suppressors) for surge protection: 12V rms
  • Dimension:
    UST110GLIB UST110GLI:63mmx36mmx21mm with 165mm mini cable -BNC male connector
    UST111GLI:37mmx20mmx22mm with 150mm mini cable
    UST111GLI-H:37mmx20mmx50mm with BNC male
     
  • Material: PVC Black-UST110GLI, ABS Black-UST111GLI, UST111GLI-H
Primary Competitive Advantages
  • "Green" Product
  • Brand-name Parts
  • Country of Origin
  • Distributorships Offered
  • Experienced Technical Staff
  • Form A
  • Guarantee/Warranty
  • Packaging
  • Product Features
  • Product Performance
  • Prompt Delivery
  • Quality Approvals
  • Service
  • Small Orders Accepted
    • Main Export Markets
    • Eastern Europe
    • North America
    • Asia
    • Western Europe
    • Australasia
    • Mid East/Africa, Central/South America